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Momentum interferences of a freely expanding Bose-Einstein condensate in 1D due to interatomic interaction change

A. Ruschhaupt·A. del Campo·J. G. Muga
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Abstract

A Bose-Einstein condensate may be prepared in a highly elongated harmonic trap with negligible interatomic interactions using a Feshbach resonance. If a strong repulsive interatomic interaction is switched on and the axial trap is removed to let the condensate evolve freely in the axial direction, a time dependent quantum interference pattern takes place in the short time (Thomas-Fermi) regime, in which the number of peaks of the momentum distribution increases one by one, whereas the spatial density barely changes.

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A. Ruschhaupt, A. del Campo, J. G. Muga. 2006-01-19. Momentum interferences of a freely expanding Bose-Einstein condensate in 1D due to interatomic interaction change. https://doi.org/10.1140/epjd%2Fe2006-00177-0

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